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From "Venki Korukanti (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2453) hbase queries in certain env result in NPE at FragmentWritableBatch.getEmptyBatchWithSchema()
Date Fri, 13 Mar 2015 21:50:38 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14361164#comment-14361164
] 

Venki Korukanti commented on DRILL-2453:
----------------------------------------

I think this is happening because PartitionSender is in a different fragment than ScanBatch
(due to local exchange). Now incoming batch for PS is UnorderedReciever which can return null
for schema.

> hbase queries in certain env result in NPE at FragmentWritableBatch.getEmptyBatchWithSchema()
> ---------------------------------------------------------------------------------------------
>
>                 Key: DRILL-2453
>                 URL: https://issues.apache.org/jira/browse/DRILL-2453
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - HBase
>    Affects Versions: 0.8.0
>            Reporter: Ramana Inukonda Nagaraj
>            Assignee: Venki Korukanti
>            Priority: Critical
>             Fix For: 0.8.0
>
>
> Sounds similar to Drill-1932
> But seems to be from a different place.
> Stacktrace:
> {code}
> java.lang.NullPointerException: null
>         at org.apache.drill.exec.record.FragmentWritableBatch.getEmptyBatchWithSchema(FragmentWritableBatch.java:86)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.partitionsender.PartitionSenderRootExec.sendEmptyBatch(PartitionSenderRootExec.java:276)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.j
> ar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.partitionsender.PartitionSenderRootExec.innerNext(PartitionSenderRootExec.java:133)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.
> 8.0-SNAPSHOT]
>         at org.apache.drill.exec.physical.impl.BaseRootExec.next(BaseRootExec.java:57)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.work.fragment.FragmentExecutor.run(FragmentExecutor.java:121)
~[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at org.apache.drill.exec.work.WorkManager$RunnableWrapper.run(WorkManager.java:303)
[drill-java-exec-0.8.0-SNAPSHOT-rebuffed.jar:0.8.0-SNAPSHOT]
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_51]
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_51]
>         at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
> 2015-03-13 13:41:50,740 [2afcb471-b3a1-f719-a4ce-bbd75c36637a:frag:2:2] ERROR o.a.drill.exec.ops.FragmentContext
- Fragment Context received failure.
> {code}



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